The Animated Tornado - Part 2

We've already created a tornado and a simple animation.
Now, let's make our movie more dynamic and complex.

Open your animated tornado scene and make a copy.
Let's take a look what we have. We have the 5 second movie scene with the animated 'Swirling Hurricane' atmosphere and the spinning tornado.
Now, let's create an animation path for the tornado.
Press the 'Display Timeline' button if you can't see the 'Timeline' (close the 'Mover Wizard' if it won't appear).
Highlight the 'funnel' group and select the 'Animation' tab in the 'Object properties window'.
Press the 'Animation toolbox' button.
In the 'Animation toolbox' window, uncheck the 'Spin' feature.
Repeat the operation for the 'top' group.
We will make the tornado spin again later, after creating the path.
Select the 'funnel' group and the 'top' group simultaneously.
Move the 'Timeslider' to the 1 second and move all tornado groups to the right.
Move the 'Timeslider' to the 2 second and move the tornado to another place. See the pictures below.

Create another several keyframes.

Now you have the curved animation path of the tornado and the six keyframes.
Press the 'Animation toolbox' button and check 'Spin' for all groups again.
Select the 'Main camera' in the 'World Browser' and select the 'Animation' tab in the 'Object Properties' window.

In the 'Track' box, select the 'top' group.
Now, the 'Main camera' will follow the 'top' group.

Control the position of the 'Main camera' in the 'Main camera view'.
Now, when we have a moving tornado, let's move the main camera to the center of the tornado.
Drag the 'Timeslider' to the end time of the animation and remember the position of tornado.
Select the 'Main camera' and move the 'Timeslider' to 3 seconds.
Move the 'Main camera' to the tornado.
Within 3 seconds, the 'main camera' will move to the tornado.
Drag the 'Timeslider' to 5 seconds.
Move the 'Main camera' higher.
Press the 'Generate preview' button and see the result.

Your tornado is moving and spinning!

You can add the vibration effect to the main camera.
Select the 'Main camera' and press the 'Animation toolbox' button.
Check the 'Vibrate' option. If you don't want to have the'Main camera' vibrate during the whole movie, you need to edit the vibrate filter. For instance, if you want to start the vibration after the 3rd second, your filter should be something like in my picture.
You need to divide 3 by 5 to know the X value (0,6) on the graphic. See the picture.

Good luck!